CSEMP assessment of CB153 in biota at Tynemouth
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 21.60 | 23.60 | -8.80 | 17.60 | | | |
| linear | 2 | 23.57 | 28.37 | -8.78 | 17.57 | 0.029 | 1 | 0.8653 |
| smooth (df = 2) | 3 | 24.32 | 34.32 | -8.16 | 16.32 | 1.251 | 1 | 0.2634 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2008 | 2018 | -0.2138 | -0.3340 | -0.1202 | 0.7074 | -0.170 | 0.8699 |
| last 20 years | 2008 | 2018 | -0.2138 | -0.3340 | -0.1202 | 0.7074 | -0.170 | 0.8699 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 0.716 | 0.098 | -1.991 | 0.462 | -4.305 | 0.9982 |
| EAC | 0.716 | 20.605 | 3.360 | 0.462 | 7.265 | <0.0001 |
Raw data with supporting information
Raw data with assessment
Assessment plot
Chlorobiphenyls data
Chlorobiphenyls assessment
Related pages
